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【判断题】
主矩与简化中心的选取无关 。A.
正确
B.
错误
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【单选题】In the small brochure, you can see the latest models of sneakers of different famous brands, _______ from 600 to 2,000 dollars. [ ]
A.
whose price ranges
B.
their prices range
C.
with prices ranging
D.
their prices to range
【单选题】Look! The kites in the sky are in different ________. Some are big and others are small.
A.
sizes
B.
colors
C.
pictures
【单选题】______ makes this small restaurant different is that it offers three free cups of beer to its customers every Sunday morning．
A.
Who
B.
What
C.
Whoever
D.
Whatever
【单选题】Tom is tall and thin. Peter is small but fat. They are very ________. A. the same B. different C. the different
A.
the same
B.
different
C.
the different
【单选题】Trojan Horses( ) .
A.
quickly replicate itself and gradually attach to files, programs or the hard drive.
B.
infect the computer without even having to click open email attachment or any program.
C.
allow hackers to take control over a particular system or to steal very important data.
D.
avoid the virus to attack computer.
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